Ancient Monuments

History on the Ground

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Castell y Garn

A Scheduled Monument in Abbey Cwmhir (Abaty Cwm-hir), Powys

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Latitude: 52.3515 / 52°21'5"N

Longitude: -3.442 / 3°26'31"W

OS Eastings: 301876

OS Northings: 273578

OS Grid: SO018735

Mapcode National: GBR 9M.STG1

Mapcode Global: VH690.9556

Entry Name: Castell y Garn

Scheduled Date:

Source: Cadw

Source ID: 735

Cadw Legacy ID: RD114

Schedule Class: Religious, Ritual and Funerary

Category: Round cairn

Period: Prehistoric

County: Powys

Community: Abbey Cwmhir (Abaty Cwm-hir)

Traditional County: Radnorshire


The monument comprises the remains of a ring cairn of earth and stone, which probably dates to the Bronze Age (c. 2300 - 800 BC). The cairn occupies the highest point of Garn, at the junction of three fences. It consists of an unbroken ring c.1.2m wide and up to c.0.3m high, with an internal diameter of c.14m. It was reported in 1858 has having a ‘stone chest’ with human bones, but no cist is now in evidence. The site has suffered over the years both from robbing and from dumping of clearance stone.

The monument is of national importance for its potential to enhance our knowledge of prehistoric burial and ritual practices. The feature is an important relic of a prehistoric funerary and ritual landscape and retains significant archaeological potential. There is a strong probability of the presence of both intact ritual and burial deposits, together with environmental and structural evidence. Ring cairns may be part of a larger cluster of monuments and their importance can further enhanced by their group value.

The scheduled area comprises the remains described and areas around them within which related evidence may be expected to survive.

Source: Cadw

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